This alert is in force until 3 September 2026, 05:00 UTC.
It is the 18th strongest of the 32 detections recorded within 20 km of this point since 15 April 2026. The last comparable one was on 2 September 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 109 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from noon to 7 PM CDT Thursday. * IMPAC...
An estimated 161,617 people live within 50 km of this point.
Nearby, since 15 April 2026
- August 7, 2026 · score 39 · 9.5 km
- July 5, 2026 · score 43 · 10.9 km
- June 12, 2026 · score 39 · 13.3 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 67 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 67% |
| Coordinates | 35.9021, -95.2831 |
| Nearest City | Muskogee (19 km) |
| Population Exposed | 161.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T17:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-03T12:00:00-05:00 |
| Expires | 2026-09-03T00:00:00-05:00 |
| AreaDesc | North and Central Sebastian; Southern Crawford; Central and Southern Franklin; Washington; Nowata; Tulsa; Rogers; Mayes; Okmulgee; Wagoner; Muskogee; McIntosh; Southeast Osage |
| SenderName | NWS Tulsa OK |
| ZonesUsedForCentroid | 7 |
| ZoneCount | 13 |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Muskogee?
Calamity.live data shows a weather event with CalamityScore 37/100, near Muskogee (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.